Over at tor.com, this fun cage match.
Okay, now, I get that the Balrog was scary. But it was basically a giant flaming monster with a whip. Set that against Smaug, a giant flaming monster with teeth and claws.
I vote for Smaug. Yep. The dragon would wipe the floor with the balrog.
It’s a fun post — check it out if you have a few minutes, and see why Austin Gilkeson, the post’s author, thinks I’m right.